<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
  <head><title>jsp页面</title></head>
  <body>
  ${msg}
  <br>
  <form action="index.jsp">
      <input name="param" value="WebWheel"/>
      <input type="submit" value="刷新"/>
  </form>
  </body>
</html>